Flexible ofdm/ofdma frame structure for communication systems

a communication system and flexible technology, applied in the field of digital communications, can solve the problems of limited choice for high-performance ofdm and ofdma frame structure, and the physical layer of ofdma is unlikely to maximize the achievable performance under such diverse deployment and operational conditions, and achieve the effect of effective utilization of ofdm bandwidth and facilitate spectrum sharing

a communication system and flexible technology, applied in the field of digital communications, can solve the problems of limited choice for high-performance ofdm and ofdma frame structure, and the physical layer of ofdma is unlikely to maximize the achievable performance under such diverse deployment and operational conditions, and achieve the effect of effective utilization of ofdm bandwidth and facilitate spectrum sharing

US20110096783A1Active Publication Date: 2011-04-28ZTE (USA) INC
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  • Flexible ofdm/ofdma frame structure for communication systems
  • Flexible ofdm/ofdma frame structure for communication systems
  • Flexible ofdm/ofdma frame structure for communication systems

Examples

Experimental program
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Embodiment Construction

[0043]In the following description of exemplary embodiments, reference is made to the accompanying drawings which form a part hereof, and in which it is shown by way of illustration of specific embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized and structural changes may be made without departing from the scope of the preferred embodiments of the invention.

[0044]The present invention is directed toward systems and methods for OFDM / OFDMA frame structure technology for communication systems. Embodiments of the invention are described herein in the context of one practical application, namely, communication between a base station and a plurality of mobile devices. In this context, the example system is applicable to provide data communications between the base station and the plurality of mobile devices. The invention, however, is not limited to such base station and mobile device communications applications, and the metho...

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Abstract

A flexible OFDM / OFDMA frame structure technology for communication systems is disclosed. The OFDM frame structure technology comprises a configurable-length frame which contains a variable length subframe structure to effectively utilize OFDM bandwidth. Furthermore, the frame structure facilitates spectrum sharing between multiple communication systems.

Description

RELATED PATENT APPLICATIONS[0001]This application is a divisional of U.S. patent application Ser. No. 12 / 267,502 filed Nov. 7, 2008, which claims benefit of priority under 35 U.S.C. §119(e) to Provisional Application No. 60 / 986,809, entitled “Flexible OFDM / OFDMA Frame Structure For Communication Systems”, filed Nov. 9, 2007; Provisional Application No. 60 / 987,747, entitled “Flexible OFDM / OFDMA Frame Structure For Communication Systems”, filed Nov. 13, 2007; Provisional Application No. 61 / 020,690, entitled “Flexible OFDM / OFDMA Frame Structure For Communication Systems”, filed Jan. 11, 2008; Provisional Application No. 61 / 021,442, entitled “Flexible OFDM / OFDMA Frame Structure For Communication Systems”, filed Jan. 16, 2008; Provisional Application No. 61 / 031,658, entitled “Flexible OFDM / OFDMA Frame Structure For Communication Systems”, filed Feb. 26, 2008; and Provisional Application No. 61 / 038,030, entitled “OFDM / OFDMA Frame Structure For Communication Systems”, filed Mar. 19, 2008, ...

Claims

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Application Information

Patent Timeline
28 Apr 2011
Publication
US20110096783A1
IPC
H04L12/56
CPC
H04L5/0007; H04L5/0044; H04L5/1469; H04L5/0053; H04L5/0091; H04L5/0048; H04L27/26025; H04L27/2602
Inventors
CAI, SEAN; CHOW, JERRY